home-lab/backend/lib/utils.ts

import { Mime } from "mime/lite";
import standardTypes from "mime/types/standard.js";
import otherTypes from "mime/types/other.js";
import { nanoid } from "nanoid";

export const formatBytes = (bytes: number) => {
  const sizes = ["Bytes", "KB", "MB", "GB", "TB"];
  if (bytes === 0) return "n/a";
  const i = parseInt(String(Math.floor(Math.log(bytes) / Math.log(1024))), 10);
  if (i === 0) return `${bytes} ${sizes[i]}`;
  return `${(bytes / 1024 ** i).toFixed(2)} ${sizes[i]}`;
};

export const secondsToTime = (seconds: number) => {
  const d = Math.floor(seconds / (3600 * 24));
  const h = Math.floor((seconds % (3600 * 24)) / 3600);
  const m = Math.floor((seconds % 3600) / 60);
  // const s = Math.floor(seconds % 60);
  return `${d}d ${h}h ${m}m`;
};

export const mime = new Mime(standardTypes, otherTypes);
mime.define(
  {
    "video/webm": ["mkv"],
  },
  true
);

export const getMimeType = (path: string) => {
  return mime.getType(path) || "application/octet-stream";
};

export const slugify = (text: string, lowerCase = true) => {
  let str = text.replace(/^\s+|\s+$/g, "");

  // Make the string lowercase
  if (lowerCase) {
    str = str.toLowerCase();
  }

  // Remove accents, swap ñ for n, etc
  const from =
    "ÁÄÂÀÃÅČÇĆĎÉĚËÈÊẼĔȆÍÌÎÏŇÑÓÖÒÔÕØŘŔŠŤÚŮÜÙÛÝŸŽáäâàãåčçćďéěëèêẽĕȇíìîïňñóöòôõøðřŕšťúůüùûýÿžþÞĐđßÆa·/_,:;";
  const to =
    "AAAAAACCCDEEEEEEEEIIIINNOOOOOORRSTUUUUUYYZaaaaaacccdeeeeeeeeiiiinnooooooorrstuuuuuyyzbBDdBAa------";
  for (let i = 0, l = from.length; i < l; i += 1) {
    str = str.replace(new RegExp(from.charAt(i), "g"), to.charAt(i));
  }

  // Remove invalid chars
  str = str
    // .replace(/[^A-Za-z0-9 -]/g, '')
    .replace(/[\\/:"*?<>|]/g, "")
    // Collapse whitespace and replace by -
    .replace(/\s+/g, "-")
    // Collapse dashes
    .replace(/-+/g, "-");

  if (!str.length) {
    str = nanoid();
  }

  return str;
};